Formulae and Tables for Calculating Linkage Intensities.
نویسنده
چکیده
P A G E INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Efficiency of several different formulae. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 The product method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Comparative reliability of linkages calculated from back-crosses and from FP data . . . . . . . . . 85 Reliability of linkage determinations when complementary or duplicate factors are involved 87 Tables for calculating linkage intensities.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 SUMMARY.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 LITERATURE CITED. . . . . . . . . . . . . . . . . . . . .$ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
منابع مشابه
Calculation of Linkage Intensities Where Duplicate Factors Are Concerned.
For the calculation of linkage intensities, i t is of distinct advantage to back-cross the heterozygote on the double recessive since the gametic ratio can then be determined directly from the zygotic types. In some plants, as corn, for example, back-crosses are easily and readily made, but in others, as soy-beans, the practical difficulties attending artificial hybridization are too great to a...
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We have developed an alternative approach to the maximum likelihood method for calculating recombination values and linkage intensities. This new method is simpler than those in current use in that it obviates the need for formulae and tables. Maximum likelihood methods imply the use of iterative procedures over highly complicated estimation equations (at least second degree polynomials), where...
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ATHER (1938, 1957) has shown the method by which FISHER'S ideas of the likelihood estimates can be extended to lead to maximum likelihood formulae for the measurement of linkage intensities. IMMER and HENDERSON (1943) discussed the use of these maximum likelihood methods for the analysis of F, linkage data. HANSON (1950), KRAMER (1954) and HANSON (1952) made the necessary modifications for exte...
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ورودعنوان ژورنال:
- Genetics
دوره 15 1 شماره
صفحات -
تاریخ انتشار 2003